Camshaft Selection

[Jemison Richard]

Gwyn,

Asking what camshaft to use is like asking someone what wheel are the best.
ha!    I'm not familiar with the 4x4 cams you mentioned but any low end
torque type use would probably work well including these cams.  If you're
looking in a cam catalog tend toward the high lift cams with wide
centerlines (low valve overlap) and relatively low duration (under 260 @
0.050).   The very best advice is to call a reputable cam manufacturer
(crane or whomever you prefer) and described your vehicle completely, engine
displacement, heads, gearing (if you know it) tire type and sizes, etc.
Then tell them what you want to do with the vehicle.  Be honest.  They'll
give you the best cam for your application within their selections.

good luck!

rick

> -----Original Message-----
> From:	Gwyn Reedy [SMTP:mgr at mgrcorp.com]
> Sent:	Monday, March 15, 1999 10:15 AM
> To:	Sixties Truck List; DIY-EFI List; CK Series List; Chevelle List
> Subject:	Camshaft Selection
> 
> I have the 402 BBC out of my 72 Cheyenne pickup torn down for a rebuild.
> Dang oil pump inlet fell off and the bearings got fed a mixture of oil and
> air...
> 
> The engine is not very badly damaged. Taking the crank in today to see
> what
> it needs done to it, but it doesn't look very bad at all.
> 
> The cam shows a lot of wear. Looks like the original cam with 70k miles on
> it. Some of the lifters are starting to get concave a bit too.
> 
> The truck is used for running errands around town, and from time to time
> pulling a heavy trailer. The trailer is 6000 lbs empty and up to 14000
> loaded. 3.08 posi rear end and THM-400.
> 
> Wondering what cam to put in it. This is an oval port (passenger car type
> heads) with a low profile Quadrajet manifold, standard cast iron exhaust
> manifolds. Need low end torque, not horsepower.
> 
> I'm wondering if any of these 'bottom-end torque for 4x4 off road use'
> cams
> might be a good choice or should I just put a replacement factory cam back
> in it?
> 
> Gwyn Reedy
> Brandon, Florida
> mailto:mgr at mgrcorp.com
> '72 Cheyenne half ton (driver)
> '69 El Camino SS396 (rebuilder)
>